Waveguides and horns

[Frode]

Current collection.

Which amt is the GAMT90 made for?

Frode

 

[jzagaja]

Faceplate is removable. It's a dipole:

hifisound eShop   -  HARWOOD ACOUSTICS AM 35 AIR MOTION   N

 

[sendler]

Waveguide for Neo3

Some sort of 1000Hz, 90-40 degree elliptical cd wave guide for use with the Neo3 might be popular if the vertical center to center spacing could be kept reasonable for a 1500Hz crossover. They could also be stacked front and back to make a dipole toroid type of wave guide.

 

[jzagaja]

When we finish technology for GAMT90 (this is not an OS) and results will be good then we quickly scale it to elliptical WG for NEO3.

 

[jzagaja]

Under construction.

 

[jzagaja]

Pictures from Audioshow 2010. I've got many opinions that Rockets (aka Universe by Voxativ in future) was the only one speaker that could play heavy metal "live". There were young guys who travel for 5 years to different shows with Sepultura CD to find system that can cope with such music. Mummies were close to Rockets and much smaller. For smaller rooms they are better for this job. Keep in mind our room was to small and people compared to Avantgarde, MBL101, Steinway-Lyngdorf open baffles. BMS ringradiator is superb and Monacor KU-516 can be used as a midrange - roll-of starts at about 300Hz. Now I can focus on passive version.

 

[jzagaja]

...

 

[dede]

Hello,

The iwata looks awesome, i seriously start thinking about them

Can you tell us more about frequency range and directivity ?

Regards

Anthony

 

[jzagaja]

Simulation tells it behaves like JMLC-350. First pair sold quickly during the show for TAD4001. Next piece is going to me.

 

[jzagaja]

Finnish examples.

 

[jzagaja]

Directivity plot JMLC-1000 + BMS 4538.

 

[doug20]

What is the latest on the 12" OS waveguide speakers? Outside of getting on the group buy list how do we specific that we want gloss black color??

What is the latest date to sign up too?

 

[dede]

Thanks, do you think a tweeter is needed with the iwata and Tad 4001 ?

 

[jzagaja]

There's no deadline and no carrier in US - case is open. I was told there are forwarders that ship for $500/pellet to China via air so there must be an option to USA. No problem with particular RAL colour for one pair.

Tweeter for TAD4001/Iwata is not needed, see:
http://www.geocities.jp/arai401204/Horn/A290/F-A290_TAD4001.jpg

 

[dede]

Thanks, i will give them a shot

Email on his way

 

[jzagaja]

Directivity plot above has to be measured again. My Centrance Micporpto has bug - GND pin of a XLR socket looses contact with mic cable. This form high pass filter. Normally BMS ringradiator has falling response which I would like discuss with Jean-Michel.

 

[jzagaja]

Monacor KU-516 midrange compression driver and JMLC-200T with a full rollback. Mouth response (Bruel Kjaer 4149 mic).

 

[jzagaja]

To get idea of the size.

 

[JZatopa]

I am really interested in a pair of those coffin enclosures. Is there a supplier for the JMLC-1000 and JMLC-1000 in the US?

Jzagaja we may need the wight and dimensions of a full pallet to see if we can find someone to ship to the US,

Would it be cheaper to make and ship the OSWG-12 without any dampening material added or is that a minor part of the price?

 

[jzagaja]

I don't know any other supplier than Azura. All JMLC horns I have seen didn't have full rollback. Euro pellet size is 47"x32" height let say 60" for via air, weight ca. 130lb. Additional damping is +30% but you can make it yourself in OSWG or "coffin" easily.